process.stdin.resume();
process.stdin.on('data', function (data) {
    var num = 0;
    try {
        num = parseInt(data.toString(), 10);
        num += 1;
        process.stdout.write(`我已经给你加1了, 现在的值是：${num}\n`);
    } catch(e) {
        process.stderr.write(e.message);
    }
});